Xenon atom shape (IMAGE) University of Copenhagen - Faculty of Science Caption The nucleus of the Xenon atom can assume different shapes depending on the balance of internal forces at play. As two Xenon atoms collide in the CERN experiment, extremely hot conditions are created triggering the nuclei shapes to change. Credit You Zhou, NBI Usage Restrictions Permission from You Zhou, NBI License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.